Arch Linux update for flashplugin

1) Use-after-free error

EUVDB-ID: #VU1078

Risk: Critical

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2016-7855

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error when handling .swf files. A remote attacker can trick the victim to visit a website or open a file with malicious Flash file and execute arbitrary code on the target system with privileges of the current user.

Note: this vulnerability was being actively exploited in the wild.

Mitigation

Update the affected package flashplugin to version 11.2.202.643-1.

Vulnerable software versions

Arch Linux: All versions

External links

http://security.archlinux.org/advisory/ASA-201610-18

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.